MD simulation of surface smoothing due to cluster impact: estimation of radiation damage

Autor:	K. Itabasi, Y. Yamamura, Tetsuya Muramoto
Rok vydání:	2005
Předmět:	Nuclear and High Energy Physics Chemistry Vacancy defect Atom Cluster (physics) Frenkel defect Radiation damage Atomic physics Dislocation Instrumentation Stacking fault Ion
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 228:1-8
ISSN:	0168-583X
DOI:	10.1016/j.nimb.2004.10.013
Popis:	The radiation damage of irradiated surfaces by cluster ion with a few eV/atom is studied through molecular dynamics simulations, where (Ar) 3055 clusters with 3–10 eV/atom are bombarded on a rough Cu surface. Since energetic primary knock-on atoms are not created by the big cluster bombardment with a few eV/atom, the Frenkel pair is not observed. However, we found some vacancy, dislocation and stacking fault beneath the irradiated surface. These defects are generated by the plastic deformation and the melting of the surface, because the big cluster impact produces very high particle and energy densities in a small impact region.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0452a4dbb8af4a8840142b6d87834b99 https://doi.org/10.1016/j.nimb.2004.10.013 Zobrazit plný text záznamu Full Text from ScienceDirect